将 XML 文件导入 SQL Server 2012

Question

每个星期五我都必须将几个（有时超过 300 个）XML 文件导入到 2 个表中。

其中一张表的结构R000000如下所示：

R00000010 | R00000020 | R00000030 | R00000040 | R00000050 | R00000060 
---------- ------------ ---------- ----------- ----------- ----------
R000000   |     I     |   0002    |     1     |     2     |    0026
R000000   |     I     |   0003    |     1     |     2     |    0025
R000000   |     I     |   0004    |     1     |     2     |    0021
R000000   |     I     |   0006    |     1     |     2     |    0023
R000000   |     I     |   0001    |     1     |     2     |    0022

^ 每行对应一个 XML 文件。

结构不会改变，只有数据（在这种情况下，我已经放置了一些随机的，例如）。

XML 文件如下所示：

R00000010 | R00000020 | R00000030 | R00000040 | R00000050 | R00000060 
---------- ------------ ---------- ----------- ----------- ----------
R000000   |     I     |   0002    |     1     |     2     |    0026
R000000   |     I     |   0003    |     1     |     2     |    0025
R000000   |     I     |   0004    |     1     |     2     |    0021
R000000   |     I     |   0006    |     1     |     2     |    0023
R000000   |     I     |   0001    |     1     |     2     |    0022

做这个的最好方式是什么？我目前正在 Access 中执行此操作。

Answer 1

尝试一下类似下面的东西......

显然，您需要插入适合您环境的变量，检查数据类型（可能需要添加逻辑以保留前导零？），从最终临时表更改为常规表等。

对于我来说，从 XML 文件导入到临时表，之后无需删除文件，效果很好，但使用另一个 xp_cmdshell 命令添加逻辑以从 UNC 路径删除文件应该不会太困难。

DECLARE @folder AS VARCHAR(1000) = '\\servername\sharename\folder\subfolder1\'
DECLARE @command VARCHAR(500) = 'DIR /B "' + @folder + '*.xml"'
DECLARE @file VARCHAR(100)
DECLARE @filesinafolder TABLE (filenameswithfolder VARCHAR(500))
DECLARE @sql NVARCHAR(4000)

-- create global temp table
IF OBJECT_ID('tempdb..##XMLImport') IS NOT NULL
    DROP TABLE ##XMLImport

CREATE TABLE ##XMLImport (
    R00000010 VARCHAR(7)
    ,R00000020 VARCHAR(1)
    ,R00000030 INT
    ,R00000040 INT
    ,R00000050 INT
    ,R00000060 INT
    )

INSERT INTO @filesinafolder
EXEC master..xp_cmdshell @command

-- create cursor
DECLARE filecurs CURSOR
FOR
SELECT REPLACE(filenameswithfolder, @folder, '') AS filenames
FROM @filesinafolder
WHERE filenameswithfolder IS NOT NULL

OPEN filecurs

FETCH NEXT
FROM filecurs
INTO @file

IF @file = 'FILE NOT FOUND'
    GOTO exitprocessing

WHILE @@fetch_status != - 1
BEGIN
    SET @sql = 'DECLARE @X XML

                    SELECT @X = P
                    FROM OPENROWSET(BULK ''' + @folder + '' + @file + ''', SINGLE_BLOB) AS Products(P)

                    DECLARE @iX INT

                    EXEC sp_xml_preparedocument @iX OUTPUT
                        ,@X

                    SELECT *
                    INTO #XMLResults
                    FROM OPENXML(@iX, ''/*/*'', 2) WITH (
                            R00000010 VARCHAR(7)
                            ,R00000020 VARCHAR(1)
                            ,R00000030 INT
                            ,R00000040 INT
                            ,R00000050 INT
                            ,R00000060 INT
                            )
                    EXEC sp_xml_removedocument @iX

                    INSERT INTO ##XMLImport
                    SELECT R00000010
                        ,R00000020
                        ,R00000030
                        ,R00000040
                        ,R00000050
                        ,R00000060
                    FROM #XMLResults'

    --PRINT @sql

    EXEC sp_executesql @sql

    -- process next file
    FETCH NEXT
    FROM filecurs
    INTO @file
END

exitprocessing:

-- clean up
CLOSE filecurs

DEALLOCATE filecurs

SELECT *
FROM ##XMLImport